NASCAR playoff field for South Point 400 in Las Vegas not yet set

The Brickyard 400 was supposed to decide the final NASCAR playoff spots heading into this weekend’s inaugural South Point 400 at Las Vegas Motor Speedway before weekend-long rains forced the regular-season finale to be rescheduled Monday.

According to the old Roger Miller song, God didn’t make little green apples. But it sure does rain in Indianapolis in the summertime.

Sunday’s Brickyard 400 was supposed to decide the last NASCAR playoff spots heading into this weekend’s inaugural South Point 400 at Las Vegas Motor Speedway before weekendlong rains forced the regular-season finale to be rescheduled for 11 a.m. PT Monday.

Most of the playoff berths already have been determined, but seven-time Cup Series champion Jimmie Johnson will have to race his way in at Indianapolis.

If a driver who already has clinched a playoff spot wins Monday, Johnson and Hendrick Motorsports teammate Alex Bowman will advance via the 15th and 16th spots. But should a driver outside the top 16 take the checkered flag, either Johnson or Bowman probably would be knocked out.

Johnson has a 19-point edge on Bowman under NASCAR’s complex point system heading into the finale.